Insulators play a critical role in electrical equipment, serving to support and isolate electrical conductors while preventing current flow. Silicone rubber stands out as the predominant polymeric insulation material for high-voltage applications. Our composite insulators, featuring silicone rubber insulation, demonstrate outstanding performance across diverse climates and challenging environments including coastal, desert, and industrial settings.
Our Silicone insulator compound is a ready-to-use rubber compound suitable for moulding or injection moulding applications and is available in grey/light grey as standard or any requested colour.
GRADE | HV 02(11-33kV) | EHV(higher than 33 kV) |
Hardness | 60-64 shore A | 64-67 shoreA |
Specific gravity | 1.57-1.60 | 1.55-1.57 |
Tensile strength | 2.5 N/mm2 - 3N/mm2 | 4.6-5 N/mm2 |
Elongation % | 180% - 200% | 220% - 250% |
Tear strength | 12 KN/m-12.7KN/m | 16KN/m-17KN/m |
volume resistivity | 4.236*10^14 ohm-cm | 1.75*10^15 ohm-cm |
dielectric strength | 20.55 kV/mm | 26.32 kV/mm |
Resistance to tracking and erosion | no tracks after 3.5KV after six hours | no tracks after 4.5 KV eight hours |